Ethylene glycol is used as a protecting group for carbonyl groups in organic synthesis. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst (e.g., p-toluenesulfonic acid; BF3â¢Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles.
Charles Street and Beacon Hill in Historic Boston, Massachusetts. Shops on Charles Street are an eclectic mix of boutiques, galleries, jewelry stores and home accessory shops with plenty of nearby restaurants, inns and historic sites.
St. Charles. Once named the Williamsburg of the West by Southern Living Magazine, St. Charles' Main Street region is Missouri's first and largest historic district. Tour the First State Capitol Historic Site or stroll the brick paved streets of Historic St. Charles, taking in more than 125 unique shops and restaurants.